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Gnesinka [82]
4 years ago
10

7+9+11...+2013-5-7-9-...2011

Mathematics
1 answer:
Troyanec [42]4 years ago
6 0
If you would like to calculate 7 + 9 + 11 + ... + 2011 + 2013 - 5 - 7 - 9 - 11 - ... - 2011, you can do this using the following steps:

7 + 9 + 11 + ... + 2011 + 2013 - 5 - 7 - 9 - 11 - ... - 2011 = (7 + 9 + 11 + ... + 2011) + 2013 - 5 + (- 7 - 9 - 11 - ... - 2011) = 2013 - 5 = 2008

The correct result is 2008.

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For the function f(x) = x + 7, what is the ordered pair for the point on the graph where x = 2b? (2b, 2b + 7) (2b, x + 7) (x, x
EastWind [94]

Answer:

(2b, 2b + 7).

Step-by-step explanation:

y = x + 7 and x = 2b ,

therefore y = 2b + 7.

7 0
3 years ago
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(79,35+7,32) x 42,2-95,3​
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3562.174

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prisoha [69]

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3 years ago
There were 55 questions on your chemistry exam , your score was a 94.5 %. how many questions did
pav-90 [236]

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You got about 52 (~51.975) questions right on your chemistry exam

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6 0
3 years ago
The radii of Earth and Pluto are 6,371 kilometers and 1,161 kilometers, respectively. Approximately how many spheres the size of
antoniya [11.8K]
The volume of a sphere is (4/3) (pi) (radius cubed).

The volume of one sphere divided by the volume of another one is

 (4/3) (pi) (radius-A)³ / (4/3) (pi) (radius-B)³

Divide top and bottom by (4/3) (pi) and you have     (radius-A)³ / (radius-B)³
and that's exactly the same as
                                                         ( radius-A / radius-B )  cubed.

I went through all of that to show you that the ratio of the volumes of two spheres
is the cube of the ratio of their radii.

Earth radius = 6,371 km
Pluto radius = 1,161 km

Ratio of their radii = (6,371 km) / (1,161 km)

Ratio of their volumes =  ( 6,371 / 1,161 ) cubed = about <u>165.2</u>

Note: 
I don't like the language of the question where it asks "How many spheres...".
This seems to be asking how many solid cue balls the size of Pluto could be
packed into a shell the size of the Earth, and that's not a simple solution.
The solution I have here is simply the ratio of volumes ... how many Plutos
can fit into a hollow Earth if the Plutos are melted and poured into the shell.
That's a different question, and a lot easier than dealing with solid cue balls.
4 0
4 years ago
Read 2 more answers
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